Which code is used to indicate "acknowledge"?

The code that is used to indicate "acknowledge" is 10-4. This code is widely recognized in police and emergency services as a way to convey a simple, affirmative response to a communication. When someone says “10-4,” it confirms that the message has been received and understood, allowing for efficient communication among officers and dispatchers.

Understanding the significance of 10-4 is crucial within law enforcement and emergency responses, as it establishes clarity in operations and ensures that all parties are on the same page when they communicate. Being able to quickly acknowledge information can aid in the swift completion of tasks and enhance overall communication during operations.